97 research outputs found
The Historical and Geopolitical Aspects of the Berlin Crisis
Just what do we have in mind when we talk about the Berlin problem? A moment\u27s thought makes it clear that it is not one problem, but a number of closely interrelated problems
Role of PET in improving wear properties of PP in dry sliding condition
The sliding wear of isotactic polypropylene (PP), polyethylene terephthalate (PET) and their
blends was evaluated as a function of applied pressure and composition against a stainless steel counter face
in dry condition. Wear rate decreases with the addition of PET in the blend. The wear was observed in two
stages, the moderate wear and high wear while increasing the applied pressure on test samples. The addition
of PET in PP helps in increasing the limit of moderate wear towards the high-pressure side. Microstructure
and worn surfaces of samples were observed by scanning electron microscope. The wear phenomenon has
been discussed based on wear losses and worn surfaces
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